Electric toilet seat exhaust ventilator



Feb. 25, 1958 R. L. BULOW 2,824,313

ELECTRIC TOILET SEAT EXHAUST VENTILATOR Filed May 20, 1954 5Sheets-Sheet 1 2 v km:

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. v INVENTOR.

Feb. 25,1958 R. L. BULOW 2,824,313

ELECTRIC TOILET SEAT EXHAUST VENTILATOE Filed May 20, '1954 i 5Shets-Sheet 2 C ATTORNEY YI j Feb. 25, 1958 R. BULQW ELECTRIC TOILETSEAT EXHAUST VENTILATOR 5 Shee ts-S heet 3 Filed May 20, 1954 v v IIAWENTOR 31 9 -5 ATTORNEY Feb. 25, 1958 R. 1.. BULOW ELECTRICyTOILETSEAT EXHAUST VENTILATOR 5 Sheets-Sheet 4 Filed May 20, 1954 w N\\\\\\ HJI I ll .1] I

TTORNEY Feb. 25, 1958 1 R. L. BULOW 'ELECTRIC TOILET SEAT EXHAUSTVENTILATOR 5 Sheets-Sheet 5 Filed May 20, 1954 mun/ ' INVENTOR.

A T TOR NEY 824,313 ELECTRIC TOILET SEAT EXHAUST VENTILATOR Richard L.Bulow, Royal Oak, Mich.

Application May 20, 1954, Serial No. 431,118

1 Claim. c1. 4-213 The object of my invention is to produce a toiletventilating system for connecting the toilet bowl directly with anoutside exhaust ventilator, completely under power control, andoperative automatically only when the toilet is in use. v

Another object is to produce an electric toilet exhaust ventilator thatis simple in construction, easily and efiiciently installed andoperated, and that can be manufactured at a very low cost.

The objects are attained in the. preferred form by the construction andarrangement of parts as are more fully hereinafter set forth.

Similar parts on all drawings are marked by similar numerals or letters.

Fig. l is an elevation view of the assembled toilet ventilating system,showing the general arrangement of the connected units andoperatingmechanism.

Fig. 2 is a top view of the assembled toilet and ventilating units,showing the relative position of the various operating parts.

Fig. 3 is a bottom view of the toilet seat taken on the line 3-3 of theFig. 1, showing the ventilator intake ports and the support and controlmeans.

Fig. 4 is a vertical sectional view taken on the line 44 of the Fig. 2,showing the design of the toilet seat hollow ventilating frame and'thedetachable base plate mounted thereon.

Fig. 5 is a vertical sectional view taken on the line 5-5 of the Fig. 2,showing the chambered seat outlet ventilatnig tubes and electric controlunit.

Fig. 6 is a cross-sectional View of the toilet seat frame taken on theline 6-6 of the Fig. 2, showing the seat chamber formation, and springsupport and control means for automatically disconnecting the electricpower circuit when not in use.

Fig. 7 is a side elevation of the power exhaust unit as installed withina hollow building partition wall adjacent the ventilated toilet unit.

Fig. 8 is a front view of the combination motor-fan unit with the casingwall cap removed as taken on the line 8-8 of the Fig. 7, showing therelative poistion of the compound motor-fan unit, and exhaust passageleading therefrom.

Fig. 9 is a top view of the motor-fan exhaust unit as mounted within aretaining wall, showing the relative position therein, and the electricpower cable connections.

In general my device is a hollow, perforated toilet seat unit hingedlymounted on adjustable tubular support units opening therein and alsoconnected to an electric power fan exhause system mounted within anadjacent wall recess leading to an outdoor ventilator.

I will now describe more fully the detail construction of my device,referring to the drawings and the marks thereon,

The Fig. l of the drawings, illustrates the outlines of a standardtoilet unit A and water supply tank as used therewith, in its installedposition adjacent an ordinary hollow partition wall.

.nited States Patent 2,824,313 Patented Feb. 25, 1958 My invention isconfined solely to the special toilet seat and connected wall ventilatorexhaust system, but in no way interferes with the ordinary toilet unituse, or operation.

The unit design herein illustrated is especially adapted forconstruction of plastic, or similar materials, although it is to beunderstood applicable to any suitable material adaptable to the requireddesign formation.

The toilet seat assembly, as illustrated in the Figs. 1 and 2 of thedrawings, is formed of the ordinary standard exterior shape and design,comprising a seat unit 1, and cover unit 2 hingedly mounted thereon atthe back end, by ordinary hinge units 3 rigidly projected from the seatupper wall. The cover 2 is preferably made of the hol low design, asillustrated in the Fig. 4 of the drawings, and is provided with theusual resilient contact buttons 10, for noiseless contact with the seatunit in closing therewith, as in the ordinary construction.

The seat unit 1 is preferably oval in exterior design, formed with asimilar central oval opening a symmetrically positioned therein, and isprovided with an extended parallel wall hinge block b projected from theback end thereof, the entire unit being constructed hollow throughout,forming an inner air ventilating chamber 0 therein. The hinge block b isenlarged at the outer end and is formed with cylindrical bearingopenings d through opposite side walls, cross-wise thereof, positionedat right angles to the seat centerline, and opening into the ventilatingchamber 0. ithin the seat bottom edges e and f are formed central flangegrooves 4 and 5 extending the full edge lengths completely surroundingsaid unit edges. A thin base plate 6 of exact seat unit exterior design,is fixedly mounted beneath said hollow seat chamber 0 and joined to theseat edges 2 and f by projected base flanges g and it formedsymmetrically therewith, thus in closing and sealing the ventilatingchamber 0, said base plate 6 being fixedly attached thereto by anextended seat end flange k and by special release snap hooks 7 attachedto said seat inner chamber walls. The base plate 6 is designed withspecial air intake openings 8 formed therethrough, preferably positionednear the seat inner opening a. The base plate is also provided with athumb recess 9 positioned near the snap hooks 7, for easily removingsaid plate when necessary. Within the hinge block b is mounted on openelectric contact switch unit 11, fixedly attached to the recess endwall, designed with a contact button 12 projected from the bottom wallthereof, and extended through the seat base plate 6, engageable with thetoilet bowl edge, as is illustrated in the Figs. 1 and 4 of thedrawings, said switch unit 11 being connected within an electric circuitby the terminal cord wire 13 leading to the exhaust power unit B, andconnected power wall plug.

Through opposite seat bearing openings d are mounted tubular bearingunits 14, each fixedly mounted within a circular support collar 15,supported by fixedly attached mounting rods 16 positioned at rightangles to the collar center-lines. Both mounting rods 16 are slidablymounted through vertical slide bearings 17 rigidly clamped to the toiletA Walls, as illustrated in the Fig. 5, and provide adjustable hingesupport means for the chambered seat unit 1. Resilient contact buttons18, preferably rubber, are fixedly mounted on the forward end of theseat base, designed and positioned to engage the toilet bowl A edges atall times. Also spring contact buttons 19 are adjustably mounted nearthe back base plate edge, projected therethrough, allowing said seatunit to depress slightly when weight is placed thereon, andautomatically depress the switch contact button 12, closing the terminalswitch 11 controlling the exhaust unit B.

The preferred exhaust unit B is an assembly formed of a standardcombination pancake motor-fan unit C now in common use (or any othersimilar unit). This combination motor-fan assembly comprises a small,thin motor ,unit 20 mounted within a supporting casing 21 suitable forinstallation within a building partition wall, said motor being inclosedby a squirrel cage type of exhaust fan unit 22 also mounted on the samedrive shaft, as illustrated in the Fig. 7 of the drawings. The airintake 23 leading into the, fan unit is centrally located on the motorside wall, preferably through a special wall cap plate 24, and entersthe exhaust fan 22 around the motor outer edge, the air being dischargedtherefrom through the outlet duct 25 mounted on the fan casingcircumference and extended up through the partition wall recess leadingto an outdor discharge outlet. The air intake 23 is connected to theseat tubular bearing unit 14 by connected flexible dual pipe sections 26mounted therebetween, as illustrated in the Figs. 1 and 2 of thedrawings, and with the electric cable 13 electrically connected to boththe motor 20 and extended to the electric power source through theattached wall plug unit 27, operative whenever weight is added to thetoilet seat assembly, depressing same and closing the control switch 11.

While I have illustrated my device with the exhaust unit B mountedwithin a vertical side wall recess, it is to be understood that theexhaust unit may also be readjusted for mounting within the floor recessbeneath the toilet unit A equally as well, and the flexible pipe units26 displaced to enter inside the toilet walls through special sideopenings 28, as indicated in the Fig. 1, and projected downward to theexhaust intake 23 as in the former case, the operation is exactly thesame as previously described. In some cases the outlet pipes 26 may besubstituted with special channel recesses 29 formed directly within thetoilet unit, as isillustrated in the Fig. 1 of the drawings.

Having fully described my electric toilet seat exhaust ventilator, whatI claim as my invention and desire to secure by letters patent is:

I claim:

An electric toilet seat exhaust unit ventilator adapted for airventilation of a toilet unit, and used therewith, comprising a hollow,recessed, oval shaped toilet seat unit formed with a projected hollowend hinge block thereon, tubular hinge bearing units mounted cross-wisethrough said projected hollow hinge block and opening therein, verticaladjustable bearing units fixedly mounted over said tubular bearing unitsand slidably mounted in the adjacent toilet unit walls, an open pushbutton electric switch fixedly mounted within said seat hinge blockprojection, engageable with the toilet wall, a perforated base platefixedly mounted over said hollow seat recess forming an air ventilationchamber throughout, flexible air outlet tubes mounted on the saidtubular bearing units, an electric motor-fan air exhaust unit fixedlymounted within an adjacent building Wall recess opening and connected tosaid flexible air outlet tubes leading to the seat chamber, an airexhaust outlet passage channel mounted within the building wall andconnected to the exhaust unit outlet, electric cable means foroperatively connecting the exhaust motor with an electric power sourcethrough the push button control switch unit when the toilet seat isdepressed in use, and spring release button means mounted on the seatbase, engageable with the toilet walls, for raising said toilet seat andfor opening said electric control switch when not in use.

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